FINAL: Compound Interest/Rule of 72

What is the formula for the Rule of 72?

• 72 + interest rate

• 72 - interest rate

• 72 x interest rate

• 72 / interest rate

If the interest rate is 6%, how many years will it take for an investment to double using the Rule of 72?

• 24

• 36

• 6

• 12

Tags

CCSS.HSF.LE.A.4

If the interest rate is 8%, how many years will it take for an investment to double using the Rule of 72?

• 12

• 9

• 15

• 6

Tags

CCSS.HSF.LE.A.4

If the interest rate is 10%, how many years will it take for an investment to double using the Rule of 72?

• 7.2

• 10.2

• 8.4

• 5.5

Tags

CCSS.HSF.LE.A.4

If the interest rate is 12%, how many years will it take for an investment to double using the Rule of 72?

• 2

• 4

• 6

• 8

Tags

CCSS.HSF.LE.A.4

Your 3 year investment of $20,000 received 5.2% interest compounded annually.  What is your total return?

• $23,285.05
• $3,285.05
• $2,385
• $32,285

Tags

CCSS.HSF-LE.A.1C

Riley invested $1,000 in savings bonds. If the bonds earn 6.75% interest compounded semi-annually, how much total will Riley earn in 15 years?

• $1,584.62
• $2,651.39
• $2,706.86
• $1,825.10

Tags

CCSS.HSF-LE.A.1C

Principal: $5000
Interest Rate: 3.75%
Time: 25 years
Compounded Monthly
State the future account balance.

• $12712.31
• $12,749.30
• $12,657.59
• $12550.84

Caiden deposited $475 in an account that pays an interest rate of 3.8% compounded annually. What will be his balance after 15 years?

• $827.52

• $831.10

• $839.45

• $846.80

Your 6 year investment of $40,000 at 14% interest compounded annually is worth how much now?

• $47,798.90
• $87,798.90
• $127,798
• $7,798

Tags

CCSS.HSF.BF.A.2